Niall Horan is apparently worried he is going to get a reputation as a serial dater.

The One Direction star is fast stealing his bandmate Harry Styles' crown as the main lothario of the group. He has recently been linked to three women - model Barbara Palvin, his on/off girlfriend Zoe Whelan and reality TV star Louise Thompson.

Niall is said to be concerned about the reputation he is gaining.

"Niall is pulling his hair out because he just can't make up his mind and feels like he's messing all three girls around," a source explained to British magazine Heat.

Niall and Barbara went on a date to the cinema, where they watched The Hunger Games: Catching Fire. They were later seen leaving London nightspot Chakana Club together and the singer is apparently smitten.

"[He has been] texting her constantly [and] admitting to friends that he has a huge crush on her," the source explained.

However, Louise apparently thinks she is the one to have won the blonde star's heart. She has reportedly been telling friends they are definitely a serious item, while Niall seems to have other ideas. He is heading home to Ireland over the festive season and plans to catch up with former flame Zoe.

"His family are having a big party that Niall has asked her to be his special guest at. He feels she is the least demanding of the girls and doesn't try and tie him down," the insider said.